CN213574732U

CN213574732U - Noise reduction device of exhaust fan

Info

Publication number: CN213574732U
Application number: CN202022517903.0U
Authority: CN
Inventors: 赵志国; 孙忠向
Original assignee: Shandong Chuangshi Environmental Equipment Co ltd
Current assignee: Shandong Chuangshi Environmental Equipment Co ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-06-29
Anticipated expiration: 2030-11-04

Abstract

The utility model discloses a device of making an uproar falls in exhaust fan, including exhaust fan body and hush pipe, one side fixedly connected with air exit of exhaust fan body, one side fixed mounting of air exit has the base, one side of base and the inside wall of air exit all are provided with the screw hole, the both sides fixedly connected with fixed block of screw hole, the inner wall threaded connection of screw hole has the bolt, the upper end fixed mounting of air exit has the joint structure, the inside fixed mounting of hush pipe has the flow distribution plate. This exhaust fan's the device of making an uproar that falls utilizes damping, syllable-dividing, the soft characteristic of stereotype, can effectually give sound insulation, simultaneously, through the setting of inhaling sound cotton and acoustic celotex board, can have and absorb and give sound insulation exhaust fan during operation noise production, and noise reduction effectively controls fan noise and spreads, utilizes the sound function of inhaling of hydrophobic rock wool, when reducing the noise treatment cost, effectively controls fan noise and spreads.

Description

Noise reduction device of exhaust fan

Technical Field

The utility model relates to a technical field of making an uproar falls specifically is a device of making an uproar falls of exhaust fan.

Background

The noise that produces when the exhaust fan operates mainly has aerodynamic noise (being the air current noise), the drive gear noise, the motor noise, air-vent valve noise and vibration noise etc. wherein intensity is the highest, it is the aerodynamic noise that the influence is the biggest, administer the noise and generally take to inhale the sound, give sound insulation, comprehensive treatment measures such as control vibration propagation, the current exhaust fan body noise treatment that has the device of making an uproar of falling mainly adopts the exhaust fan to install additional between giving sound insulation outside the exhaust fan (for improving noise reduction effect, generally will wrap the motor inside) or wrap up in the exhaust fan casing outside and inhale technique such as sound rock wool.

However, when the existing noise reduction device is used, the construction cost is high, the noise reduction effect is poor, the existing noise reduction device is limited by environmental conditions and the like, and the noise reduction part needs to be installed on the exhaust fan, so that the installation and the disassembly are very inconvenient, and therefore, the noise reduction device of the exhaust fan is needed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an exhaust fan fall device of making an uproar has solved the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a device of making an uproar falls of exhaust fan, includes exhaust fan body and hush pipe, one side fixedly connected with air exit of exhaust fan body, one side fixed mounting of air exit has the base, one side fixedly connected with hush pipe of base, one side of base all is provided with the screw hole with the inside wall of air exit, the both sides fixedly connected with fixed block of screw hole, the inner wall threaded connection of screw hole has the bolt, the upper end fixed mounting of air exit has the joint structure, the inside fixed mounting of hush pipe has the flow distribution plate.

Optionally, the inside wall of amortization pipe is provided with galvanized steel sheet, one side fixedly connected with of galvanized steel sheet inhales the sound cotton, inhale one side fixedly connected with acoustic celotex board of sound cotton.

Optionally, one side of the acoustic celotex board fixedly connected with increases water rock wool, one side fixedly connected with stereotype of the rock wool that increases water.

Optionally, one side fixedly connected with inserted bar of base, the slot has been seted up to the inside wall of air exit, inserted bar and slot looks adaptation, the draw-in groove has all been seted up with the upper end of slot to the inserted bar.

Optionally, the clamping structure includes a spring, a housing, a pull rod, a handle and a clamping block, the pull rod is located inside the housing, the surface of the pull rod is fixedly connected with the spring, the upper end of the pull rod is fixedly connected with the handle, and one side of the pull rod, which is far away from the handle, is fixedly connected with the clamping block.

Optionally, the fixture block and draw-in groove looks adaptation, the quantity of joint structure is two, two the joint structure all is located the both ends of air exit.

(III) advantageous effects

The utility model provides a device of making an uproar falls of exhaust fan possesses following beneficial effect:

1. this exhaust fan's device of making an uproar that falls through the setting of amortization pipe, utilizes the damping, syllable-dividing, the soft characteristic of stereotype, can effectually give sound insulation, simultaneously, through the setting of inhaling sound cotton and acoustic celotex board, can have and absorb and give sound insulation exhaust fan during operation noise production, noise reduction, the effective control fan noise is propagated, utilizes the sound function of inhaling of hydrophobic rock wool, when reducing the noise treatment cost, the effective control fan noise is propagated.

2. This exhaust fan's the device of making an uproar that falls, setting through the joint structure, when to the exhaust fan amortization, need install the hush pipe on the air exit, the installation is very inconvenient with the dismantlement, because base and hush pipe fixed connection are in the same place, through with the inserted bar inject in the interior slot of air exit, then in the draw-in groove of seting up inserted bar and slot upper end with the fixture block through the joint structure, be convenient for fix the hush pipe in one side of air exit, be convenient for carry out the amortization and be convenient for install and dismantle, bolt threaded connection just has the hush pipe installation firm at threaded hole inner wall through the bolt simultaneously, the phenomenon of activity can not appear.

Drawings

Fig. 1 is a schematic three-dimensional structure of the present invention;

FIG. 2 is a schematic structural view of a front view section of the present invention;

FIG. 3 is a schematic structural view of the inner section of the silencer according to the present invention;

fig. 4 is an enlarged schematic structural view of a point a in fig. 2 according to the present invention.

In the figure: 1. an exhaust fan body; 2. a base plate; 3. an air outlet; 4. a base; 5. a sound-deadening tube; 6. a threaded hole; 7. a fixed block; 8. a bolt; 9. a clamping structure; 901. a spring; 902. a housing; 903. a pull rod; 904. a handle; 905. a clamping block; 10. a flow distribution plate; 11. a galvanized steel sheet; 12. sound-absorbing cotton; 13. a sound insulating board; 14. hydrophobic rock wool; 15. a lead plate; 16. inserting a rod; 17. a slot; 18. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 4, the present invention provides a technical solution: a noise reduction device of an exhaust fan comprises an exhaust fan body 1 and a bottom plate 2, wherein the lower surface of the exhaust fan body 1 is fixedly connected with the bottom plate 2, one side of the exhaust fan body 1 is fixedly connected with an exhaust outlet 3, one side of the exhaust outlet 3 is fixedly provided with a base 4, one side of the base 4 is fixedly connected with an inserted link 16, the inner side wall of the exhaust outlet 3 is provided with an inserting groove 17, a silencing pipe 5 and the exhaust fan body 1 are conveniently installed together through the arrangement of the inserting groove 17 and the inserted link 16, the inserted link 16 is matched with the inserting groove 17, the inserted link 16 and the upper end of the inserting groove 17 are respectively provided with a clamping groove 18, one side of the base 4 is fixedly connected with the silencing pipe 5, the silencing pipe 5 is conveniently silenced through the arrangement of the silencing pipe 5, the inner side wall of the silencing pipe 5 is provided with a galvanized steel plate 11, one side of the galvanized steel plate 11 is fixedly connected with sound absorption cotton 12, noise generated during the operation of the exhaust fan body 1 can be absorbed and soundproof through the arrangement of the sound absorption cotton 12 and the sound insulation board 13, the noise is reduced, the noise transmission of the fan is effectively controlled, one side of the sound insulation board 13 is fixedly connected with hydrophobic rock wool 14, the sound absorption function of the hydrophobic rock wool 14 is utilized through the arrangement of the hydrophobic rock wool 14, the noise control cost is reduced, simultaneously, the noise transmission of the fan is effectively controlled, one side of the hydrophobic rock wool 14 is fixedly connected with a lead board 15, the vibration reduction, the sound insulation and the soft characteristic of the lead board 15 are utilized through the arrangement of the lead board 15, the sound insulation can be effectively carried out, one side of the base 4 and the inner side wall of the exhaust outlet 3 are both provided with threaded holes 6, both sides of the threaded holes 6 are fixedly connected with fixed blocks 7, the inner wall of the threaded holes 6 are in threaded connection with bolts 8, through the arrangement of the threaded holes 6 and the bolts 8, the air outlet 3 is fixedly provided with a clamping structure 9 at the upper end, the inserted link 16 is inserted into the slot 17 of the air outlet 3 through the arrangement of the clamping structure 9, then in inserting clamping block 905 into draw-in groove 18 that inserted bar 16 and slot 17 upper end were seted up through joint structure 9, be convenient for fix hush pipe 5 in one side of air exit 3, be convenient for amortize and be convenient for installation and dismantlement, joint structure 9 includes spring 901, shell 902, pull rod 903, handle 904 and clamping block 905, pull rod 903 is located the inside of shell 902, pull rod 903 surface and spring 901 fixed connection, the upper end and the handle 904 fixed connection of pull rod 903, the one side and the clamping block 905 fixed connection of pull rod 903 keeping away from handle 904,

clamping block

905 and 18 looks adaptations of draw-in groove, joint structure 9's quantity is two, two joint structure 9 all are located the both ends of air exit 3, the inside fixed mounting of hush pipe 5 has flow distribution plate 10.

In conclusion, when the noise reduction device of the exhaust fan is used, the inserted rod 16 is inserted into the slot 17 of the air outlet 3 through the arrangement of the clamping structure 9, then the clamping block 905 is inserted into the clamping groove 18 formed at the upper ends of the inserted rod 16 and the slot 17 through the clamping structure 9, the silencing pipe 5 is conveniently fixed at one side of the air outlet 3, the silencing and the installation and the disassembly are convenient, the silencing pipe 5 is stably installed by connecting the bolt 8 to the inner wall of the threaded hole 6 through the threaded hole 6 and the bolt 8, the moving phenomenon is avoided, the noise generated during the operation of the exhaust fan body 1 can be absorbed and insulated through the arrangement of the sound absorption cotton 12 and the sound insulation plate 13, the noise is reduced, the noise transmission of the fan is effectively controlled, the sound absorption function of the hydrophobic rock wool 14 is utilized, the noise control cost is reduced, and the noise transmission of the fan is effectively controlled, by providing the lead plate 15, the vibration reduction, sound insulation, and flexibility of the lead plate 15 can be utilized to effectively perform sound insulation.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a device of making an uproar falls in exhaust fan, includes exhaust fan body (1) and bottom plate (2), its characterized in that: the lower surface and bottom plate (2) fixed connection of exhaust fan body (1), one side fixedly connected with air exit (3) of exhaust fan body (1), one side fixed mounting of air exit (3) has base (4), one side fixedly connected with hush pipe (5) of base (4), one side of base (4) and the inside wall of air exit (3) all are provided with screw hole (6), both sides fixedly connected with fixed block (7) of screw hole (6), the inner wall threaded connection of screw hole (6) has bolt (8), the upper end fixed mounting of air exit (3) has joint structure (9), the inside fixed mounting of hush pipe (5) has flow distribution plate (10).

2. The noise reduction device of an exhaust fan according to claim 1, wherein: the inside wall of amortization pipe (5) is provided with galvanized steel sheet (11), one side fixedly connected with of galvanized steel sheet (11) inhales sound cotton (12), inhale one side fixedly connected with acoustic celotex board (13) of sound cotton (12).

3. The noise reduction device of an exhaust fan according to claim 2, wherein: and one side of the sound insulation board (13) is fixedly connected with hydrophobic rock wool (14), and one side of the hydrophobic rock wool (14) is fixedly connected with a lead plate (15).

4. The noise reduction device of an exhaust fan according to claim 1, wherein: one side fixedly connected with inserted bar (16) of base (4), slot (17) have been seted up to the inside wall of air exit (3), inserted bar (16) and slot (17) looks adaptation, draw-in groove (18) have all been seted up to the upper end of inserted bar (16) and slot (17).

5. The noise reduction device of an exhaust fan according to claim 1, wherein: the clamping structure (9) comprises a spring (901), a shell (902), a pull rod (903), a handle (904) and a clamping block (905), the pull rod (903) is located inside the shell (902), the surface of the pull rod (903) is fixedly connected with the spring (901), the upper end of the pull rod (903) is fixedly connected with the handle (904), and one side, away from the handle (904), of the pull rod (903) is fixedly connected with the clamping block (905).

6. The noise reduction device of an exhaust fan according to claim 5, wherein: fixture block (905) and draw-in groove (18) looks adaptation, the quantity of joint structure (9) is two, two joint structure (9) all are located the both ends of air exit (3).